US PATENT SUBCLASS 178 / FOR 100
.~ Writing (178/18)

Current as of: June, 1999
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178 /   HD   TELEGRAPHY

2.0R  DD  SYSTEMS {2}
FOR 100.~ Writing (178/18) {2}
FOR 101  DF  .~.~> Alternating current (178/19)
FOR 102  DF  .~.~> Variable direct current (178/20)

DEFINITION

Classification: 178/FOR.100

Foreign art collections for systems for producing at the receiver a facsimile of the handwriting, drawing, etc., made by the operator in manipulating the pen of the transmitting instrument.